Rotary engine.



PATENTBD DEC. 11, 1906.

INVENTOR Y Samuel 8840 02118 ATTORNEYS Erm W22" S. S. SADOEUS.

ROTARY ENGINE. urmonmn FILED MAY 16,1908.

section on about line 1 1 of Fig. 2.

UNITED STATES SAMUEL S. SADORUS, OF SARILDA, IDAHO.

ROTARY ENGINE.

Specification of Letters Patent.

Patented Dec. 11, 1906.

I Application filed May 16.1906. Serial No. 317.138.

To all whom it may concern:

Be it known that I, SAMUEL S. SADORUS, a citizen of the United States, and a resident of Sarilda, in the county of Fremont and State of Idaho, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification.

My invention is an improvement in rotary engines; and it consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a transverse Fig. 2 is a cross-section on about line 2 2 of Fig. 1. Fig. 3 is a sectional perspective view illustrat ing the packing-strips secured within the rim of the casing. Fig. 4 is a sectional perspective view illustrating the packing-strips secured within the rim of the revolving pistoni f Fig. 5 is a cross-sectional view and Fig. dis a face view, partly in section, of one-of" the piston-blades. Fig. 7 is a detail plan view of one of the abutments with the side plates thereof in place. i

In carrying out my invention the casing A has inlet-ports B and b, supplied from the pipe C, the latter having a branch C, leading to the port I), and the casing also has the eX- haust-ports B and b, the steam supplied through the ports B and b exhausting through the ports B and b. The casing comprises the side plates A and A and the rim A, the head D operating within the casing and being suitably secured to a shaft E, whereby to operate the same. This piston D is provided at its opposite sides with the outwardly-projecting flanges D, projecting beyond its rimplate D and forming a circumferential channel in the outer edge of the piston, in which operate the blades of the piston and the abutments of the casing, as will be understood from Fig. 1. The abutments a project inwardly over the rim of the casing and are of a widthto fit snugly between the flanges D of the piston-head and are preferably provided at their opposite sides with the spring packing-plates a, secured at a by bolts, or otherwise, to the opposite sides of the abutment a and flaring slightly toward their opposite ends and provided at their opposite or free ends with inwardly-projecting flanges a which lap along the square face 0/ of the abutment, the opposite or rear face a of theabutment being sloped, as shown in Figs. 1 and 3, to properly depress the piston-blades in the operation of the engine.

The engine is packed between the outer edges of the flanges D and the inner face of the rim A of the casing. This ispreferably accomplished by means of packing-strips seated in suitable grooves, as shown in Figs. 3 and 4.

In Fig. 3 the packing-strips F are seated in grooves f in the inner face of the rim A at points opposite the edges of the flanges D, while in Fig. 4 the packing-strips F are seated in grooves f in the edges of the flanges D. In both instances the packing-strips are re duced and overlap at their ends to form a complete joint. These packing-strips may be of-any suitable metal and will operate to secure a tight joint as desired. The outer surface of the rim D of the piston D moves in {close proximity to the inner edges of the abutments a, and the piston-blades G are pivoted to the piston, and preferably in the inner faces of the flanges D thereof, by means of pivoted stops G on the blades entering sockets d in the inner faces of the flanges, as shown in Fig. 4. The blades are so arranged that when closed they will be seated in recesses d in the outer face of the rim D as in passing the abutments and when so seated they will compress the springs d, which are preferably springplates secured at one end to the piston adjacent to the pivot of the blades G, and deflected outward toward their other or free ends, so that after the blades have passed the abutments the springs d will tend to throw the said blades slightly outward, so they can be acted upon by the steam fed'into the casing. The piston-blades G are provided in their outer edges with packing-strips in the form of rollers G which bear against the inner face of the rim A of the casing. The packing-rollers G are pressed outwardly by means of springs Gr bearing against blocks G in which the rollers bear at their inner sides, as best shown in Figs. 5 and 6 of the drawings. WVhen the pistons are thrown out to operative position, as shown in Figs. 1 and 4, they abut against the free ends of side springs H, the said side springs being fitted against the inner faces of the flanges D of the piston, secured by rivets or otherwise at one end H to the sides of the casing and preferably recessed therein, as best shown in Fig. 4, and extending at their other ends laterally into the annular recess in the outer face of the piston with their free ends it deflected outwardly, so they may form stops for the blades G when the latter are in operative position, and yet can move past the abutments a as the piston revolves in the casing.

It will be noticed that in operation when the packing-strips shown in Fig. 3 are employed they are constructed to have contracting action upon the free edges of the flanges D of the piston, while the form of packing-strip shown in Fig. 4 is designed to operate with an expanding action to press against the inner face of the rim A the con' struction in both instances operating to prevent the waste of steam laterally between the flanges of the piston and the-casing.

I claim l. The improvement in rotary engines herein described comprising a casing having its rim provided with inwardlg projecting abutments, spring-plates at the opposite sides of the abutments and flaring toward their free ends, a piston-head having a rim and flanges ,proj ectingoutwardly beyond the same, the rim being provided with recesses :for the blades and with springs therein for giving the blades their initial opening mo vements, the piston-blades pivoted'at their inner edges within the rim-recesses and adapted to seat in said recesses in passing the abut- -ments of the casing, said blades being provided in their outer edges with the packingrollers and with springs for actuating the same, the side plates secured to the inner faces 'of the piston-flanges and springing at their free edges inwardl y to position for abutment by the blades when the latter are opened, and packing-strips between the flanges of the piston and the rim of the casing, substantially as set forth.

2. In a rotary engine the combination of a :piston and a casing having abutments and provided on the opposite sides of 'the abutments with plates springing outwardly at their free edges to form a close joint with the piston, the piston having portions operating alongside the said plates, substantially as set forth.

3. The combination in a rotary enginewith the piston and the casing, of the blades pivoted to the piston and abutments projecting from the casing in the paths of said blades and provided on their opposite sides with spring-plates, the piston having opposite outwardly-projecting flanges operating along the outer sides of the said springplates, substantially as described,

4. The combination with the casing and the abutments, of the piston having thepivoted blades and the spring-plates secured at one end beneath the blade adjacent to the pivot thereof and deflected outwardly toward their free ends and arranged at said ends beneath the free edge of the blade for cured :to the inner faces of the side flanges,

substantially as set forth.

7. The combination in a rotary engine of the casing having the abutment providedwith springs at its opposite sides, the piston having the side flanges and the blade, and the side plates secured to the inner faces of the piston-flanges, substantially as set forth.

8. The combination with the piston-rim recessed for the blade and the side flanges provided in their. inner faces with sockets opposite the said recess, of the side plates secured to the flanges and :rprojecting'at their free edges to form stops for the blade, the

piston-blade having the pivot-studs journaled in the sockets of the side flanges, and means for spring-actuating said blade, substantiallyras set forth.

SAMUEL S. SADORUS. WVitnesses:

RoB'r. M. ROBINSON, F. E. HIGGINBOTHAM. 

